The main event this year was the Patron's Lunch which celebrated the Queen's patronage of more than 600 charities in Britain and throughout the commonwealth. Over 10,000 people lined The Mall (the road leading up to Buckingham Palace), to take part in the UK's biggest ever street party.

In order to attend, revellers had to pay a hefty £150 for a ticket. In return, they received a sizeable food hamper, a free poncho, and a seat at a table.

More than 10,000 people attended the lunch, despite bouts of torrential rain. 12,500 ponchos were handed out.

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The event was organised by the Queen's grandson, Peter Phillips.

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The £150 entry fee has been criticised, as was the decision to allow the Queen's grandson and his company to organise the event. His company will receive an undisclosed amount of money.

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However, the palace says it is a not-for-profit event that is designed to give the charities attending a chance to raise money.

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Every guest was given a food hamper containing a small feast. Party-goers could enjoy a can of Pimms, orange juice, salad, sandwiches, and more.

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Security was tight at the country's largest ever street party. Each guest went through full body scanners before being allowed in.

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And in nearby St. James' Park, people who missed out on a place on The Mall set up their own celebrations.

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The Queen travelled through the crowds in an open-top Range Rover before making a speech, in which she joked: "How I will feel if people are still singing happy birthday in December remains to be seen."

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A number of members of the royal family took part in a walkabout. The walkabout was made popular by the Queen and her husband Prince Philip in the 1970's as a way of getting closer to their fans.

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Prince William, Prince Harry, and Princesses Beatrice and Eugenie also took part in the walkabout.

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This photo has also gone viral on Facebook, alongside the caption: "England in one photo."